Laser-induced thermoelectric effects in electrically biased nanoscale constrictions

Nanophotonics

article

Marie-Maxime Mennemanteuil¹  Gérard Colas-des-Francs¹  Mickaël Buret¹  Arindam Dasgupta¹  Alexander Cuadrado²  Javier Alda²  Alexandre Bouhelier¹ 

[1] Laboratoire Interdisciplinaire Carnot de Bourgogne, Université Bourgogne Franche-Comté;Applied Optics Complutense Group, University Complutense of Madrid

关键词: Plasmonics;    nanostructure;    Seebeck effect;    thermoelectricity;    electron transport;   

DOI  :  10.1515/nanoph-2018-0083

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

Electrically biased metal nanostructures are at the core of innovative multifunctional integrated devices that control the flow of electrons and photons at the nanoscale. They are based on plasmonic structures that create strongly confined fields, typically associated with large temperature gradients. These thermal effects may generate artifact responses detrimental to the desired operation. We show here how a biasing polarity and a local optical excitation asymmetry of a generic geometry – a nanoscale constriction – interplay thermally to modify the diffusive electron transport in out-of-equilibrium conditions. Our experimental results are accompanied with computational electromagnetism and multiphysics simulations.

【 授权许可】

CC BY